WSOF 4 card now complete with five prelims, including Lew Polley-Hans Stringer

With the official addition of four fights to the preliminary card, the next World Series of Fighting lineup is complete.

WSOF officials on Wednesday announced the full prelims for World Series of Fighting 4, which takes place Aug. 10 at Citizens Business Bank Arena in Ontario, Calif. The main card airs live on NBC Sports Network following prelims on MMAjunkie.com (www.mmajunkie.com).

After more than two years off, Reign MMA product Polley went 2-0 in 2012 with a pair of decision wins for BAMMA USA and Bellator. But he’ll be fighting for the first time since this past October. Stringer, from the Netherlands, has won four straight and 11 of his past 13 with just one loss and a draw to Attila Vegh in that stretch.

Murphy is coming off the first loss of his pro career at the hands of Carson Beebe at WSOF 3 a month ago. He meets Robles, who has won back-to-back fights and has six knockouts among his seven career victories.

Gutierrez will be returning to action for the first time since a February 2011 win that snapped a two-fight skid. And Valenzuela will try to start a new win streak after a February 2012 win – his most recent fight.

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